I get that but often times you need or want ZK anyway. If you are running Druid, Pinot, Hadoop or anything else Big Data they generally have a ZK dependency. If

I get that but often times you need or want ZK anyway. If you are running Druid, Pinot, Hadoop or anything else Big Data they generally have a ZK dependency. If you need service discovery, consensus or config storage ZK is generally great for all of those usecases too. I think if you want a completely standalone distributed log for an application then it could be a good fit but it's not going to replace Kafka as the goto for Big Data pipelines because it's advantages aren't worth it in this context. (i.e you are already running ZK, you are throughput and not latency bound, rest of the ecosystem is JVM anyway, etc)